How To Measure To Determine What Bearings Are Needed For My Trailer
Updated 06/13/2025 | Published 06/11/2025
Products Featured in This Question
Question:
WHERE DO I MEASURE THE AXLE OR OTHE BEARING CAP TI FIND THE CORRECT SIZE. I BELIEVE I HAVE TWO 3500 DEXTER EZLUBE AXLES ON MY LIVESTOCK TRAILER. THANKS IN ADVANCE JON
asked by: JON B
Expert Reply:
Hey Jon, thanks for reaching out. There are a few ways to find out what bearings you need. The easiest way is to take a look at your hub and see if there is a part number cast on the front or back. Usually we can use this number to pull up your bearing info.
Or you can remove a hub and take a look at your bearings. Each bearing should have number stamped on the edge, or you can measure the ID of each bearing with a micrometer.
Or you can measure the part of the spindle where the bearings and seal ride. The diagram below will show you how to measure the spindle.
Most 3,500 lb axles made within the last 20 or so years use a standard bearing combination. That being the # L68149 (1.378" inner diameter) inner bearing and # L44649 (1.063" inner diameter) outer bearing. If this is what you have, you will want the # BK2-100 Bearing Kit, but please confirm.
Get me that info and I am happy to look into it and make a few recommendations.
Are you needing new hubs too? Or just the bearing kit? Replying on the page is the fastest way to get ahold of me.
(click to enlarge)
Product Page this Question was Asked From
EZ Lube Grease Caps with 2.72" OD - Fits 12" x 2" Dexter 8-Bolt Hubs - Zinc - Qty
- Trailer Bearings Races Seals Caps
- Caps
- EZ Lube Grease Cap
- 2.72 Inch O.D.
- 2.72 Inch
- 5200 lbs Axle
- 6000 lbs Axle
- 7000 lbs Axle
- Dexter
more information >
Continue Researching
- Search Results: 12" brake drum
- Search Results: trailer bearings races seals caps
- Search Results: dexter trailer bearings races seals caps
- Shop: Nylon Bushings - 9/16" Inner Diameter, 11/16" Outer Diameter - 1-3/4" Long - Qty 4
- Video: Review of Dexter Trailer Bearings Races Seals Caps - Axle EZ Lube Grease Caps 2.72 Inch OD - DX49HR
- Shop: Dexter 3/4" x 4-1/2" Spring Eye Bolt for 10K General Duty Slipper Springs
- Video: A Closer Look at the Truryde Trailer Hub 2.72" Drive-In Grease Cap for EZ Lube Axles
- Shop: EZ Lube Grease Caps with 2.72" OD - Fits 12" x 2" Dexter 8-Bolt Hubs - Zinc - Qty
- Video: Feature Review Spring-Eye Bolt with Locknut for Slipper Springs
- Video: Spring-Eye Bolt with Locknut for Slipper Springs: The Breakdown
- Video: All You Need to Know About the Dexter Nev-R-Adjust Electric Trailer Brakes
- Video: In-Depth Review of the Trailer Hub Grease Cap with Rubber Plug, 2.72"
- Video: Replacement Shoe and Lining for Nev-R-Adjust 12" x 2" Electric Review
- Search Results: ez lube grease cap trailer bearings races seals caps
- Shop: Dexter Tandem-Axle Trailer Equalizer Kit for 2-1/2" Slipper Springs - 24-5/8" Equalizers
- Shop: Dexter Bearing Kit for 1-1/16" to 1-3/8" Tapered Spindle, Bearings L44649/L68149
- Shop: Easy Grease Trailer Hub and Drum Assembly for 7K Axles - 12" - 8 on 6-1/2 - Pre-Greased
- Shop: Trailer Hub Grease Cap, 2.72" - Drive-In for EZ Lube Axles - Qty 1
- Search Results: trailer hubs and drums
- Search Results: grease cap
- Shop: Trailer Hitch
- Search Results: trailer hitch
- Article: Trailer Wiring Diagrams
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Q&A: How to Determine Replacement Trailer Wheel Bearing Sizes
- Shop: Trailer Wiring
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: What is a #84 Spindle and How Do I Know I Have One On My Trailer?
- Shop: Suspension Enhancement
- Article: How to Measure Your Trailer Wheel Bolt Pattern
on Trailer Bearings Races Seals Caps
Jon B.
6/13/2025
I’m not looking the bearings , I’m in need of measuring the cap that basically covers the bearings, I need to know where to measure so I can get the right cap